Fountain-pen.



'Patented Sept 9, i902.

c. F. MILLER. FUUNTIN PEN. Application md may 13, 1901.

(No Model.)

'UNITED ST Arras )ART-1 FREDRICK MlLlillthOF JANESVILLE, IVISCONSIN.

FOUNTAlN-PEN.

SPECIFICATION forming part of Letters Patent No. 708,572, datedSeptember 9, 1902.

Application tiled May 13, 1901.

Serial No. 59,956. (Nonlodel.)

and it consists in improvements whereby a force feed and illing actionis attained through the use o'f a piston in a npvel manner.'

- The object of the invention is to produce a fountain-pen by whichinkis drawn within the barrel or body through the agency of a plunger, apiston which draws the ink into a nozzle formedwi-th or attached to theupper end of the body, saidv nozzle being incased by a cap.

Furthermore, the object of the invention is to produce a fountain-penpiston having a novel valve and valve-seat to accomplish the resultstated.

Furthermore, the object of the invention is to produce a penwhich willpossess advantages in points of simplicityand eiticiency,V

proving at the same time comparatively inexpensive. A

With the above and other objects in view the invention consists in thedetails of construction and in the arrangement and combinationof partsto be hereinafter more fully set forth and claimed.

In describing the invention in detail reference will be hadlto theaccompanying drawings, forming pant of this specification,where l'inlike characters denot-e corresponding parts in the several views, inwhich- Figure 1 is a View in elevation of a pen.

i Fig. 2 is a longitudinal section with the interior parts in elevation.y Fig. 8 is a sectional `View with the cap removed and the piston drawnin. Fig. 4 is a perspective view ofthe feeder and piston with theintermediate parts. Fig. 5- is a sectional View of the valve-casing,piston, and a fragment of thestem.

In the drawings, 1 indicates the body or reservoir, terminating at itsupper end in a nipple 2, having a screw-threaded exterior 3 I thereservoir to the rear of the piston.

position of the valve is such that the ports 14 for the reception of thecap 4, which incloses and protects the nipple.

The feed 5 of-thepen 6, which has its end seated in the feed; may4 be ofany ordinary construction and need not, therefore, be described indetail. Suffice to say that it has a duct 7, communicating with theinterior of the reservoir, for conveying ink to the pen. `A stem 8 isformed with or attached tothe feed alud extends back a considerabledistance, preferably to a point near the juncture of. the reservoir andnipple, said stem carrying a valve-casing 9. A piston 10 is formed withthe valve casing, said piston fitting against the inner Wall of thereservoir and having a holell in its end guarded by a valve 12. Aspring'l has one end leaning against the valve and its opposite endleaning against the valve-stem in order to retain the valve normallyseated. Ports 1i lead from the valveseat 15 to the outside of thevalve-casing for permitting the ink to pass into the barrel when thevalve is unseated through pressure on the valve-stem when ink isrin andthe hole in the end of the piston are unsealed simultaneously by theaction of the valve.V A buffer-screw 1b' projects within the reservoirto limit the movementbf the piston in one direction.

From the foregoing description the operation will be obviously asfollows: When it is desired to fill the reservoir with ink, the cap onthe nipple is removedand the feeder is drawn out, carrying with it thevalve-stem and piston. As the'piston passesinwardlyV the ink Will bedrawn within the barrel until it strikes the buer-pin and is arrested.rPhe cap is then screwed on the nipple, and the piston is slowly forcedback to its original position. 'The valve is unseated by the pressure,land the ink passes through the end'of the piston and ducts to theinterior ofthe reservoir on the opposite side of the piston and is freeto discharge through the feeder to the pen.

Having fully described my invention,what I claim as new, and desire tosecure by Letters In a fountain-pen, a reservoir having a nip- IOO p, a.@up thfade on the n; ple, a pen anni fe der in the opposite @n of themrs/er' @is and n, stem connecbed to thefeedex" in 130m" nation with LValve-'Casing ou the oQpOSU- and of the stem, a pitim having :i 11015 inits end formed with the Valve-casing; port uhrough the Wall of thevnavemaiug 'leading no the reservoir, a mw for oufroliug Lb@ hole in thepiston and the ports, spring in she valve-casing for-'etfinug the valvenor- K W imesse: FRED'. H. PALMER,

:mm-212m F. LINCULN.

